Joris was the son of Pieter I Adornes and Margaretha van Themseke. The date and place of his birth have not been found.
Joris Adornes
Pieter I Adornes (-1399)
Martino Adorno
Obizzo Adorno
Margaretha van Aertrycke (<1354-?)
Catharina Schinckelaers
Filips Schinckelaers (<1354-?)
Margaretha van Themseke